920385617 has 2 divisors, whose sum is σ = 920385618. Its totient is φ = 920385616.

The previous prime is 920385611. The next prime is 920385623. The reversal of 920385617 is 716583029.

It is a balanced prime because it is at equal distance from previous prime (920385611) and next prime (920385623).

It can be written as a sum of positive squares in only one way, i.e., 568297921 + 352087696 = 23839^2 + 18764^2 .

It is a cyclic number.

It is not a de Polignac number, because 920385617 - 2⁶ = 920385553 is a prime.

It is not a weakly prime, because it can be changed into another prime (920385611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460192808 + 460192809.

It is an arithmetic number, because the mean of its divisors is an integer number (460192809).

Almost surely, 2^920385617 is an apocalyptic number.

It is an amenable number.

920385617 is a deficient number, since it is larger than the sum of its proper divisors (1).

920385617 is an equidigital number, since it uses as much as digits as its factorization.

920385617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 920385617 is about 30337.8578182442. The cubic root of 920385617 is about 972.7246937542.

The spelling of 920385617 in words is "nine hundred twenty million, three hundred eighty-five thousand, six hundred seventeen".